CN1156184A - Method for separating stibium from stibilated coarse tin - Google Patents
Method for separating stibium from stibilated coarse tin Download PDFInfo
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- CN1156184A CN1156184A CN96113164A CN96113164A CN1156184A CN 1156184 A CN1156184 A CN 1156184A CN 96113164 A CN96113164 A CN 96113164A CN 96113164 A CN96113164 A CN 96113164A CN 1156184 A CN1156184 A CN 1156184A
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- antimony
- tin
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- stibilated
- stibium
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Abstract
A pyrometallurgical process for separating Sb from Sb-contained raw Sn and recovering other accompanying metals includes smelting high-Sb raw Sn in vacuum furnace at 1200-1300 deg.C, residual pressure less than 13Pa and with distilling time for 30-120 min. Obtained Sn has 99% purity and Sb content less than 1%. Its advantages are no need of chemical reagent and no generation of dregs, high recovery rate and no pollution to environment.
Description
The method of separating stibium from stibilated coarse tin is a kind of pyrometallurgy method.
It is comparatively general that refined tin contains antimony, the thick tin in area that has contain the antimony amount up to one one-tenth about, the thick tin of known pyrorefining, when containing the antimony amount 1% when following, the method of removing antimony is the general effective aluminium method that adds, make antimony and aluminium generate infusible metallic compound AlSb, form scum silica frost, drag for except that scum silica frost and handle recovery tin wherein again.Then will to add aluminium many for containing the higher thick tin of antimony amount for this method, and it is big to generate the quantity of slag, seriously reduce the rate of recovery of tin, and handling slag also has bigger problem, is infeasible.
The research that stibiated tin vacuum distilling is separated antimony abroad the earliest be USSR (Union of Soviet Socialist Republics) H.H.MYPay professor, he has studied the tin that contains 0.4% antimony, residual voltage is 26.6-40Pa in the control vacuum oven, the technical qualification that temperature is 1000 ℃, the distillation content of antimony as a result is reduced to 0.3% by 0.4%, and alloy vaporization losses is 1.5% simultaneously.The thick tin of Bolivia Wen Tuo tin-smelting plant vacuum distilling, the content of antimony drops to 0.7% by 1.5%.Its thick tin composition and output object composition are tabulated in Figure of description 2.
As seen existing aluminium method or the distillation method of no matter adding, the content of antimony is lower in the raw material.The decreasing ratio of antimony is also lower in the product.
The objective of the invention is to handle that to contain the antimony amount be about 10% thick tin, obtain stanniferous, contain antimony less than 1% product greater than 99% with the method for vacuum distilling.
Fig. 1 is a process flow sheet of the present invention.Contain the thick tin of antimony and in vacuum oven, smelt, control temperature 1200-1300 ℃ of vacuum oven.Residual voltage is less than 13Pa in the stove, and distillation time 30-120 minute, the output stanniferous was greater than 99%, contains antimony less than 1% tin product.
The advantage that has of the present invention compared with prior art:
1. separate antimony effectively, the content of antimony in product is reduced to below 1%;
2. do not add chemical reagent, no bits output does not exist slag to handle problems yet;
3. use vacuum oven to be sealing equipment, environmentally safe;
4. the rate of recovery height of metal such as tin and antimony;
Refining tin, also be convenient to reclaim associated metals such as antimony.
Embodiment one
Contain the thick tin composition of antimony: Sn:88.19%, Sb:7.38%, Pb:3.9%, As:0.05%;
Technical qualification: distillation time 30 minutes, 1250 ℃ of distillation temperatures, residual voltage is less than 7Pa in the vacuum oven;
The products obtained therefrom Chemical Composition:
1. tin product composition: Sn:99.2%, Sb:0.35%, Pb:0.05%
2. produce the condensation alloy ingredient: Sn:40.53%, Sb:40.65%, Pb:15.82%
Embodiment two
Contain the thick tin composition of antimony: Sn:87.64%, Sb:10.37%, Pb:5.32%, As:0.013%;
Technical qualification: distillation time 60 minutes, 1300 ℃ of distillation temperatures, residual voltage is less than 13Pa in the vacuum oven.
The products obtained therefrom Chemical Composition:
1. tin product composition: Sn:99.34, Sb:0.55%, Pb:0.07%
2. output condensation alloy ingredient: Sn:55.75%, Sb:24.93%, Pb:18.61%
Claims (2)
1. the method for a separating stibium from stibilated coarse tin, it is characterized in that: process is carried out in vacuum oven, 1200-1300 ℃ of control furnace temperature, in the stove residual voltage less than 13Pa, distillation time 30-120 minute.
2. the method for separating stibium from stibilated coarse tin according to claim 1, it is characterized in that: the content that contains antimony in the thick tin of antimony is about 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB961131640A CN1189579C (en) | 1996-10-18 | 1996-10-18 | Method for separating stibium from stibilated coarse tin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB961131640A CN1189579C (en) | 1996-10-18 | 1996-10-18 | Method for separating stibium from stibilated coarse tin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1156184A true CN1156184A (en) | 1997-08-06 |
| CN1189579C CN1189579C (en) | 2005-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB961131640A Expired - Fee Related CN1189579C (en) | 1996-10-18 | 1996-10-18 | Method for separating stibium from stibilated coarse tin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1189579C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492861A (en) * | 2011-12-29 | 2012-06-13 | 昆明理工大学 | Fire refining method of crude tin |
| CN101696475B (en) * | 2009-10-29 | 2012-08-01 | 昆明理工大学 | Method for separating ternary alloy of lead, tin and stibium |
| CN104263935A (en) * | 2014-09-05 | 2015-01-07 | 昆明理工大学 | Method for improving vacuum distillation separation efficiency of high-cadmium zinc |
| CN104328289A (en) * | 2014-10-10 | 2015-02-04 | 昆明理工大学 | Method for removal of lead and arsenic in crude antimony vacuum refining process |
| CN104561595A (en) * | 2014-12-08 | 2015-04-29 | 广西泰星电子焊接材料有限公司 | Method for vacuum refining antimony removal of crude tin |
| CN104651625A (en) * | 2015-02-05 | 2015-05-27 | 昆明理工大学 | Method for removing antimony-lead-arsenic from antimony-containing crude tin alloy by vacuum distillation |
| CN107841636A (en) * | 2017-09-27 | 2018-03-27 | 昆明理工大学 | A kind of preparation method of high purity tin |
| BE1029580A1 (en) | 2021-07-28 | 2023-02-03 | Univ Kunming Science & Technology | PROCESS FOR SEPARATION AND PURIFICATION OF HIGH ANTIMONIUM CONTENT RAW TIN |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805832B (en) * | 2010-03-25 | 2012-06-20 | 昆明理工大学 | Method for detinning tin-iron alloy through vacuum distillation |
-
1996
- 1996-10-18 CN CNB961131640A patent/CN1189579C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696475B (en) * | 2009-10-29 | 2012-08-01 | 昆明理工大学 | Method for separating ternary alloy of lead, tin and stibium |
| CN102492861A (en) * | 2011-12-29 | 2012-06-13 | 昆明理工大学 | Fire refining method of crude tin |
| CN104263935A (en) * | 2014-09-05 | 2015-01-07 | 昆明理工大学 | Method for improving vacuum distillation separation efficiency of high-cadmium zinc |
| CN104328289A (en) * | 2014-10-10 | 2015-02-04 | 昆明理工大学 | Method for removal of lead and arsenic in crude antimony vacuum refining process |
| CN104328289B (en) * | 2014-10-10 | 2017-01-18 | 昆明理工大学 | Method for removal of lead and arsenic in crude antimony vacuum refining process |
| CN104561595A (en) * | 2014-12-08 | 2015-04-29 | 广西泰星电子焊接材料有限公司 | Method for vacuum refining antimony removal of crude tin |
| CN104651625A (en) * | 2015-02-05 | 2015-05-27 | 昆明理工大学 | Method for removing antimony-lead-arsenic from antimony-containing crude tin alloy by vacuum distillation |
| CN107841636A (en) * | 2017-09-27 | 2018-03-27 | 昆明理工大学 | A kind of preparation method of high purity tin |
| BE1029580A1 (en) | 2021-07-28 | 2023-02-03 | Univ Kunming Science & Technology | PROCESS FOR SEPARATION AND PURIFICATION OF HIGH ANTIMONIUM CONTENT RAW TIN |
| BE1029580B1 (en) * | 2021-07-28 | 2023-05-30 | Univ Kunming Science & Technology | PROCESS FOR SEPARATION AND PURIFICATION OF HIGH ANTIMONIUM CONTENT RAW TIN |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1189579C (en) | 2005-02-16 |
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Granted publication date: 20050216 Termination date: 20111018 |